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SQLAlchemy: What's the difference between flush() and commit()?
...ommit always flushes (https://docs.sqlalchemy.org/en/13/orm/session_basics.html#committing) these sound really similar. I think the big issue to highlight is that a flush is not permanent and can be undone, whereas a commit is permanent, in the sense that you can't ask the database to undo the last ...
Debugging iframes with Chrome developer tools
...
When the iFrame points to your site like this:
<html>
<head>
<script type="text/javascript" src="/jquery.js"></script>
</head>
<body>
<iframe id="my_frame" src="/wherev"></iframe>
</body>
</html>
Yo...
What does 'var that = this;' mean in JavaScript?
..., in this case this will refer to the DOM element not the created object.
HTML
<button id="button">Alert Name</button>
JS
var Person = function(name) {
this.name = name;
var that = this;
this.sayHi = function() {
alert(that.name);
};
};
var ahmad = new Person('Ahmad');
...
Show/hide 'div' using JavaScript
...ntById("attid").style.display = 'none';
}
}
</script>
HTML -
<div id="attid" style="display:none;">Show/Hide this text</div>
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Rails: Open link in new tab (with 'link_to')
...
If you're looking for how to open a link in a new tab within html (for anyone came here from Google), here:
<a href="http://www.facebook.com/mypage" target="_blank">Link name</a>
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How to redirect both stdout and stderr to a file [duplicate]
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tldp.org/LDP/abs/html/io-redirection.html mentions this syntax as being functional "as of Bash 4, final release".
– cachvico
Jan 29 '16 at 18:15
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Android JSONObject - How can I loop through a flat JSON object to get each key and value
...mentation here
http://developer.android.com/reference/org/json/JSONObject.html
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Using git commit -a with vim
...d use one of the quick reference cards:
http://bullium.com/support/vim.html
http://tnerual.eriogerg.free.fr/vim.html
Also note How can I set up an editor to work with Git on Windows? if you're not comfortable in using Vim but want to use another editor for your commit messages.
If your commit...
multiprocessing: How do I share a dict among multiple processes?
...f proxies or shared memory: http://docs.python.org/library/multiprocessing.html#sharing-state-between-processes
Relevant sections:
http://docs.python.org/library/multiprocessing.html#shared-ctypes-objects
http://docs.python.org/library/multiprocessing.html#module-multiprocessing.managers
...
How to get evaluated attributes inside a custom directive
...n ($scope) {
$scope.foo = {name: "Umur"};
$scope.bar = "qwe";
});
HTML
<div ng-controller="myController">
<div my-directive my-text="hello {{ bar }}" my-two-way-bind="foo" my-one-way-bind="bar">
</div>
</div>
In that case, in the scope of directive (whether ...